I am a 35 yr. old, white female. I have a problem of having diarrhea within an instant. For example, usually within 20 minutes after I eat. Sometimes it hits me and sometimes it does not! There is no blood, but there is alot of mucus, grease and the BM's are very loose. Sometimes like water. No certian foods do it. Sometimes something will bother me and the next time I eat it may not. As soon as I eat my stomach swells and I can hardly keep my pants buttoned. When the diarrhea hits me, I get cold sweats, feel like I could throw up and have severe stomach pain. Once the BM's are relieved, I am fine. I may have to make several trips to the toliet before I am releived. What could this be,IBS?